20701350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:454

約数の個数: 72

約数和(自身を含む): 56145960

約数和(自身を除く): 35444610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 179, 225, 257, 358, 450, 514, 537, 771, 895, 1074, 1285, 1542, 1611, 1790, 2313, 2570, 2685, 3222, 3855, 4475, 4626, 5370, 6425, 7710, 8055, 8950, 11565, 12850, 13425, 16110, 19275, 23130, 26850, 38550, 40275, 46003, 57825, 80550, 92006, 115650, 138009, 230015, 276018, 414027, 460030, 690045, 828054, 1150075, 1380090, 2070135, 2300150, 3450225, 4140270, 6900450, 10350675, 20701350]

約数ペア:

[(1, 20701350), (2, 10350675), (3, 6900450), (5, 4140270), (6, 3450225), (9, 2300150), (10, 2070135), (15, 1380090), (18, 1150075), (25, 828054), (30, 690045), (45, 460030), (50, 414027), (75, 276018), (90, 230015), (150, 138009), (179, 115650), (225, 92006), (257, 80550), (358, 57825), (450, 46003), (514, 40275), (537, 38550), (771, 26850), (895, 23130), (1074, 19275), (1285, 16110), (1542, 13425), (1611, 12850), (1790, 11565), (2313, 8950), (2570, 8055), (2685, 7710), (3222, 6425), (3855, 5370), (4475, 4626)]